Perhaps you should try some spelling variations:
communication cohesion » communication collections, communication control, communication cost
del discussion » model discussion, models discussion, delay discussions
cohesion del » cohesion model, cohesion eli, conversion del
started five » started guide, started from, started kick
started food » starter food, started from, started forms

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: communication cohesion del discussion ((started five) or (started food))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication cohesion del discussion ((started five) OR (started food)).
• Adding a wildcard symbol may retrieve word variants: communication cohesion del discussion ((started five) or (started food))*.